Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 21-09-2016 and time 04:05:58 (Italy) in region 6 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.6 earthquake occured in region: 6 km E Castelsantangelo sul Nera (MC), on

  • 21-09-2016 02:05:58 (UTC)
  • 21-09-2016 04:05:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8740, 13.2260 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelsantangelo sul Nera MC 6 281 281
Montemonaco AP 9 604 885
Montegallo AP 9 523 1408
Ussita MC 11 444 1852
Montefortino FM 12 1178 3030
Arquata del Tronto AP 13 1178 4208
Visso MC 13 1107 5315
Bolognola MC 13 142 5457
Norcia PG 14 4957 10414
Preci PG 15 724 11138
Amandola FM 16 3629 14767
Acquacanina MC 18 121 14888
Comunanza AP 18 3166 18054
Fiastra MC 19 559 18613
Sarnano MC 19 3264 21877
Acquasanta Terme AP 19 2916 24793
Palmiano AP 19 196 24989
Accumoli RI 20 667 25656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
46 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
60 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
86 Km S of Ancona (100861 inhabitants)
93 Km W of Pescara (121014 inhabitants)
97 Km NW of Chieti (51815 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.6 2016-09-21
02:05:58		 42.8745 13.2265 10 2016-09-21
02:17:36		 Sala Sismica INGV-Roma 29313501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-21 02:05:58 ± 0.05
Latitude 42.8745 ± 0.0027
Longitude 13.2265 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29313501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27249
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 29313501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-21 02:17:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1217.EHZ. 2016-09-21T02:06:08.74 0.3 undecidable manual S 233 30.0477 50 -0.2 70
IV.T1215.EHZ. 2016-09-21T02:06:08.90 0.1 undecidable manual S 255 30.2475 50 -0.08 95
IV.T1243.HHZ. 2016-09-21T02:06:07.77 0.1 undecidable manual S 137 26.751 50 -0.29 92
IV.SNTG.HHZ. 2016-09-21T02:06:07.99 3.0 undecidable manual S -2.27 0
IV.T1204.EHZ. 2016-09-21T02:06:07.02 0.1 undecidable manual S 162 23.2545 113 0.08 97
IV.CSP1.EHZ. 2016-09-21T02:06:07.48 0.3 undecidable manual S 356 24.1536 112 0.23 70
IV.FDMO.HHZ. 2016-09-21T02:06:06.38 0.1 undecidable manual S 328 21.2676 115 0.07 97
IV.T1202.EHZ. 2016-09-21T02:06:05.91 0.1 undecidable manual S 180 18.9699 117 0.3 93
IV.T1215.EHZ. 2016-09-21T02:06:04.38 0.3 undecidable manual P 255 30.2475 50 -0.04 72
XO.AM05.EHZ. 2016-09-21T02:06:04.49 0.1 undecidable manual S 42 15.3735 123 -0.03 99
IV.T1241.HHZ. 2016-09-21T02:06:04.89 0.1 undecidable manual S 97 16.7721 120 -0.05 98
IV.T1216.EHZ. 2016-09-21T02:06:04.86 0.1 undecidable manual S 276 16.9719 120 -0.14 97
IV.T1243.HHZ. 2016-09-21T02:06:04.00 0.1 undecidable manual P 137 26.751 50 0.11 95
IV.T1217.EHZ. 2016-09-21T02:06:04.46 0.6 undecidable manual P 233 30.0477 50 0.06 48
IV.CSP1.EHZ. 2016-09-21T02:06:03.62 0.1 undecidable manual P 356 24.1536 112 0.2 94
IV.NRCA.HHZ. 2016-09-21T02:06:02.92 0.1 undecidable manual S 244 10.1787 134 -0.19 97
IV.MMO1.EHZ. 2016-09-21T02:06:02.32 0.1 undecidable manual S 71 8.5803 139 -0.41 92
IV.FDMO.HHZ. 2016-09-21T02:06:02.89 0.1 undecidable manual P 328 21.2676 115 0.01 98
IV.T1202.EHZ. 2016-09-21T02:06:02.68 0.3 undecidable manual P 180 18.9699 117 0.21 71
IV.T1241.HHZ. 2016-09-21T02:06:02.16 0.1 undecidable manual P 97 16.7721 120 0.07 98
IV.T1216.EHZ. 2016-09-21T02:06:02.25 0.1 undecidable manual P 276 16.9719 120 0.13 97
IV.TERO.HHZ. 2016-09-21T02:06:02.24 3.0 positive manual P 0.86 0
IV.T1204.EHZ. 2016-09-21T02:06:01.91 3.0 undecidable manual P 162 23.2545 113 -1.33 0
IV.MC2.EHZ. 2016-09-21T02:06:01.73 0.1 undecidable manual S 323 5.0949 153 -0.31 95
IV.NRCA.HHZ. 2016-09-21T02:06:01.11 0.1 undecidable manual P 244 10.1787 134 0.08 99
XO.AM05.EHZ. 2016-09-21T02:06:01.94 0.1 undecidable manual P 42 15.3735 123 0.09 98
IV.MMO1.EHZ. 2016-09-21T02:06:00.85 0.1 undecidable manual P 71 8.5803 139 0.04 100
IV.MC2.EHZ. 2016-09-21T02:06:00.54 0.1 undecidable manual P 323 5.0949 153 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.2 0.00011300000000000001 1.5 AML other m 2016-09-21T02:06:07.26
IV.FDMO.HHN. ML:1.2 0.000106 0.74 AML other m 2016-09-21T02:06:06.61
IV.NRCA.HNE. ML:1.7 0.0006599999999999999 0.14 AML other m 2016-09-21T02:06:03.79
IV.NRCA.HHE. ML:1.7 0.0007124999999999999 0.16 AML other m 2016-09-21T02:06:03.79
IV.NRCA.HNN. ML:1.7 0.0007059999999999999 1.2 AML other m 2016-09-21T02:06:03.04
IV.NRCA.HHN. ML:1.8 0.00076 0.12 AML other m 2016-09-21T02:06:03.10
IV.TERO.HHN. ML:1.5 0.0001125 0.44 AML other m 2016-09-21T02:06:12.26
IV.TERO.HHE. ML:1.4 0.00008715 0.54 AML other m 2016-09-21T02:06:12.36
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download